Minor cleanup IC keyed access handling.

test/cctest/test-strings.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1067 matching lines @@
   };
 
   const char* line;
   for (int i = 0; (line = lines[i]); i++) {
     printf("%s\n", line);
     v8::Local<v8::Value> result = v8::Script::Compile(
         v8::String::NewFromUtf8(CcTest::isolate(), line))->Run();
     CHECK_EQ(results[i]->IsUndefined(), result->IsUndefined());
     CHECK_EQ(results[i]->IsNumber(), result->IsNumber());
     if (result->IsNumber()) {
-      CHECK_EQ(Object::ToSmi(isolate, results[i]).ToHandleChecked()->value(),
-               result->ToInt32(CcTest::isolate())->Value());
+      int32_t value = 0;
+      CHECK(results[i]->ToInt32(&value));
+      CHECK_EQ(value, result->ToInt32(CcTest::isolate())->Value());
     }
   }
 }
 
 
 TEST(SliceFromCons) {
   FLAG_string_slices = true;
   CcTest::InitializeVM();
   Factory* factory = CcTest::i_isolate()->factory();
   v8::HandleScope scope(CcTest::isolate());
@@ skipping 371 matching lines @@
   Handle<String> arg0 = isolate->factory()->NewStringFromAsciiChecked("arg0");
   Handle<String> arg1 = isolate->factory()->NewStringFromAsciiChecked("arg1");
   Handle<String> arg2 = isolate->factory()->NewStringFromAsciiChecked("arg2");
   Handle<String> result =
       MessageTemplate::FormatMessage(MessageTemplate::kPropertyNotFunction,
                                      arg0, arg1, arg2).ToHandleChecked();
   Handle<String> expected = isolate->factory()->NewStringFromAsciiChecked(
       "Property 'arg0' of object arg1 is not a function");
   CHECK(String::Equals(result, expected));
 }